GRC Mineral Sand Paint (Washed Stone)

Product Category

GRC Mineral Sand Paint — also sold as Wash Stone Paint — is a decorative coating that reproduces the texture and visual richness of real stone. It is widely used in upscale architectural projects for its aesthetic appeal, excellent durability and environmental safety.

Because the raw materials come in a wide range of colours and shapes, each with its own graininess, lustre and colour, the finish reads as natural and plain rather than painted. It is widely used in interior decoration and outdoor landscape modelling.

Key Characteristics:

1. Realistic and elegant stone-like finish
2. Strong durability against weathering and moisture
3. Mould-resistant, dust-resistant and easy to maintain
4. Breathable and eco-safe formulation
5. Compatible with modern and traditional architectural styles
6. Customisable textures — fine, medium or coarse grain

Best Applications:

• Villas and private residences, hotels and commercial buildings, public and cultural buildings, and both interior and exterior architectural decoration. Courtyards, squares, parks, sidewalks and indoor floors.

Advantages:

• Wall and Floor From One Range: the same mineral sand system carries from a façade through to an interior floor, which keeps a project visually consistent
• Seamless, So No Joints to Catch: a poured and trowelled surface with no panel lines or grout — easier to clean and less to maintain
• Mineral, Not Plastic: aggregate-based rather than a plain resin film, giving a hard, stone-like surface that resists scuffing

Detailed Photos

Where the Sand Comes From

Every stone-effect finish lives or dies on its aggregate. Ours comes from Nanzhao County in Nanyang, Henan — the district GRC's own mineral resources sit in, and one of China's four major heavy calcium carbonate bases.

Nanzhao's coloured sand is quarried from marble and granite rather than manufactured, so the colour is intrinsic to the stone instead of dyed into it. That distinction decides how a façade ages: dyed and sintered sands fade under UV and bloom white where rain runs off, while a mineral colour has nothing to lose. The grain runs at Mohs 7, and it is large-scale, carefully sorted quarrying that holds the shade steady from batch to batch — the inconsistency that has historically kept natural sand out of large projects.

The coat underneath draws on the same district. Calcite from Nanzhao runs to 98% CaCO3 at 92–95 whiteness, and as a functional filler it builds film thickness, hardness, water resistance and scrub resistance into the film rather than simply bulking it out.

About Our Company

GRC has spent more than 16 years manufacturing building coatings, and today supplies contractors, design and renovation practices, and distributors. The range covers interior and exterior wall paints, floor coatings, waterproofing, primers and decorative finishes — enough breadth to carry a project from substrate preparation through to the final coat, on a family home or a commercial development alike.

Why Choose Us

60,000 tons of annual capacity, one quality standard applied to every batch, and delivery dates that hold. GRC formulates water-based and low-emission, meeting RoHS, REACH and France A+ requirements. Customers in over 60 countries keep reordering for the same reason: a coating that looks right on the wall, wears well, and stays affordable.

Technical Specification

• Package: 20KG / Barrel
• Surface Drying Time: About 4 hours
• Spreading Rate: About 3.5–4.5 kg/㎡

Standard Construction Process

1. Apply one coat of primer on the flat base surface
2. Apply the main paint with a trowel, twice
3. Apply the top coat